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CVE-2026-91847

Bookly < 28.2 - Unauthenticated AI Assistant Conversation Disclosure and Message Injection via IDOR

cve-program · severity unknownCVSS unknownCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-91847

Published

The Online Scheduling and Appointment Booking System WordPress plugin before 28.2 does not verify that the requester owns the AI booking-assistant conversation named in its unauthenticated conversation actions, allowing any unauthenticated visitor to read another visitor's assistant messages and to inject messages into their in-progress conversation.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-91847

Published

Online Scheduling and Appointment Booking System

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Unknown",
                    "product": "Online Scheduling and Appointment Booking System",
                    "versions": [
                        {
                            "status": "affected",
                            "versionType": "semver",
                            "version": "28.1",
                            "lessThan": "28.2"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON